Monkey-wrench.



PATENTED AUG. 9, 1904 Je DOYLE. MONKEY WRENCH.

APPLICATION rum DEC. 1a. 1903.

N0 MODEL.

UNITED STATES Patented August 9, 1904.

PATENT OFFICE.

JAMES DOYLE, OF CANONSBURG, PENNSYLVANIA.

MONKEY-WRENCH.

SPECIFICATION forming part of Letters Patent No. 766,939, dated August 9, 1904. Application filed December 16, 1903. Serial No. 185,349. (No model.)

To all whmn it may concern.-

Be it known that I, J AMES DOYLE, acitizen of the United States, residing at Canonsburg, in the county of Washington and State of Pennsylvania, have invented certain new and useful Improvements in Monkey-Wrenches, of which the following is a specification.

My invention relates to a new and novel construction of a monkey-wrench, the object of my invention being a wrench that can be readily operated and adjusted with one hand by controlling the movable jaw in a manner that will be more fully described in detail hereinafter, reference beinghad to the accompanying drawings, forming a part of this specilication, in which Figure 1 is a full-length side view of my improved wrench. Fig. 2 is a back or rear view. Fig. 3 is a sectional view taken on the line 3 3 of Fig. 1. Fig. 4: is a view of the cam-operated spring. Fig. 5 is a side view of one of the standards. Fig. 6 is a side and face view of the movable ratchet. Fig. 7 is a side and top View of the cam-lever.

In the drawings the numerals of reference designate like parts throughout the several views, in which- The numeral 1 isthe shank of the wrench.

2 is the fixed jaw.

3 is the movable or adjustable jaw, the construction of this jaw 3 being the improved part that is contained in my invention. Between the upper and lower parts of the jaw 3 is a square cut-out in which the operative parts of the wrench are seated and work. These parts consist of the standards 4., the cam-lever 5, the spring 9, and movable ratchet 8, with connecting-bolts 6 and 7.

10 represents the handle of the wrench.

The cam-lever 5 is held in position by the bolt 6, which passes underneath the spring 9 and unites the two standards at each side of the wrench.

The movable ratchet 8 is held in position by the bolts 7 which also unite the two standards 4.

1 represents the ratchets or teeth in the shank 1. These interlock with the ratchet teeth 8 of the part 8.

9 is an opening in the spring9 to admit the cam-lever 5. This spring 9 is secured to the movable jaw 3 at the lower side of the same.

The cam-lever 5 when forced down draws on the center of the spring 9 and at the same time pulls the ratchet 8 into contact with the teeth 1 on the shank 1, thus holding the jaw tionary jaw 52 and the movable jaw 3 be adjusted and regulated by the foregoing opera tion.

Having thus fully shown and described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a device of the character described, the combination with a shank having a fixed jaw at one end thereof, a movable jaw having a central opening therein and arms surrounding the shank of the wrench, a movable ratchet mounted within the central portion of the movable jaw, a pair of supporting members slidably mounted at either side of the shank within the central opening of the movable jaw having forwardly-projecting arms provided with apertures therein, means adapted to pass through said apertures and the movable ratchet for securing the latter between the arms, and rearwardly-extending rounded projections adapted to receive a fastening means therethrough, a cam-lever pivotally carried between said projections, adapted to actuate the movable ratchet, and spring means mounted adjacent the cam-lever adapted to force the movable ratchet from engagement with the shank, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

JAMES DOYLE.

Vvitnesses:

J orm D. CUSHNIE, JOHN J. MILLER. 

